What are the growth habits called for more rounded trees, which are often broader than they are tall?

The growth habits of more rounded trees that tend to be broader than they are tall are referred to as decurrent growth habits. This type of growth results in a tree that spreads out laterally, creating a broader canopy. Decurrent trees typically have a more expansive and rounded shape, which is often characterized by the development of several primary branches that grow outwards from the main trunk. This leads to a wider overall profile, as opposed to excurrent growth habits, where trees grow taller with a single dominant leader and a more conical shape.

The broader, more rounded structure of decurrent trees is generally advantageous in certain environments, providing more surface area for leaf production and encouraging a more extensive root system. This growth habit can be found in many species of hardwoods, which also helps them to better withstand wind and storm damage due to a lower center of gravity. Trees exhibiting decurrent growth are often valued for their shade and aesthetic appeal in landscapes and urban settings.